Sanitary mouthpiece cover



'1936- G. KAL EN OFF iv 2,055,354

SANITARY MOUTHP-IECEL COVER I ori inal Filed Aug. 8, i935 r INVENTOR ATTORNEY Patented Sept. 22, 1936 UNITED STATES PATENT OFFICE Divided and this application December 22, 1933, Serial No. 704,294

2 Claims.

This invention relates to a novel and improved cover for the mouthpieces of telephonic transmitters, as described in my copending application Serial No. 684,160, filed August 8, 1933, of

5 which this is a division, and it is the principal object of my invention to provide a sanitary cover which is readily attached to and removed from a mouthpiece and will prevent the spread of contagious diseases.

10 Another object of my invention is the provision of a sanitary cover for the mouthpieces of telephonic transmitters of simple, and inexpensive make, however highly eificient in use and which when engaged with the mouthpiece is safely held 15 to the same, while it may be readily removed after use, so that every person using the telephone may quickly attach a new cover to the same preventing the spreading of disease.

A further object of my invention is the provision of a cover for the mouthpieces of telephonic transmitters made of any suitable material readily formed from suitable blanks and either ready made or to be easily prepared by the user of the telephone from the blanks.

25 A still further object of my invention is the provision of a cover for the mouthpieces of telephone transmitters which may be equipped with clamps to clamp the ends of the blanks forming the cover together and for anchoring the same to 30 the mouthpiece.

These and other objects and advantages of my invention will become more fully known as the description thereof proceeds and will then be more specifically defined in the appended claims.

35 In the accompanying drawing forming a material part of this disclosure:

Fig. 1 is a perspective view of a modified form of cover about to be applied to a. telephone mouthpiece.

40 Fig. 2 illustrates a blank from which the cover,

Figure 1, is formed.

As illustrated in the drawing the cover for the telephone mouthpiece is formed from a suitable blank 15 having a margin I6 adapted to be fold- 45 ed upon the blank along a line H.

The blank has a. recess H! of irregular contour formed at its inner margin and a tongue l9 and an extension 20 in proximityto recess l8 laterally disposed thereto, while the blank on the other 50 side of the recess is slotted, as at 2|.

In use the blank is folded. as illustrated in Figure '1 so that tongue l9 engages in slot 2| and the folded margin engages or grips over the outer margin of the telephone mouthpiece, while the extension 20 engages between margin l6 and body l5 when the latter is inserted into the mouthpiece.

My invention provides a normally collapsed cone, which can be easily shaped from a flat blank, into a conical form, with the end portions locked to each other, so that it can be inserted in 10 the conical mouthpiece of a telephone. This form of construction permits a telephone user to carry a supply of the mouthpiece inserts in his or her pocket, or carrying bag, without danger of the articles being crushed out of usable condition.

The collapsed blank is not only easily formed into a conical shape, and locked in this shape, but provides a marginal flange which overlaps the marginal edge of the telephone mouthpiece, and thus acts to retain the cone in position, so that the protective attachment will not drop out of place when the telephone transmitter is tilted.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent is:

1. A normally collapsible flat blank of flexible material having an approximately radial outer edge and a recess located centrally thereof, the blank at one side of the recess extending beyond the blank at the other side of the recess and having a slot therein, the blank at the shorter side of the recess having a tongue thereon to enter the slot and also having a tongue at its outer edge, said blank adapted to be folded on a curved line concentric with its edge and said last mentioned tongue adapted to be received under the folded edge when the blank is shaped into truncated conical form with the locking tongue in the slot.

2. A normally collapsible flat blank of flexible material having an approximately radial outer edge and a recess located centrally thereof, means on the blank to secure the same in truncated conical form, said means being at opposite sides of the recess in the blank, said blank adapted to be folded on a curved line concentric with its outer edge, and. means on one end of the blank to interlock in said outer edge when bent.

GODEL KALENOFF. 

